Placenta

Abnormal Placentation

Placenta previa



Last author update: 1 October 2011
Last staff update: 28 October 2020

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PubMed Search: Placenta previa[title] "loattrfree full text"[sb]

Mandolin S. Ziadie, M.D.
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Cite this page: Ziadie MS. Placenta previa. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/placentaplacentaprevia.html. Accessed December 9th, 2022.
Definition / general
  • Implantation of the placenta in the lower uterine segment, partially or completely occluding the internal os
  • Important cause of late vaginal bleeding and emergent cesarean delivery
Etiology
  • Associated with a history of D&C, cesarean delivery and multiparity
Diagrams / tables

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Placenta previa

Gross description
  • Marginal hematomas may be present
  • In vaginal deliveries, point of membrane tear may be at the disc edge
Gross images

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Placenta previa

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